Patents by Inventor John D. Hardy, Jr.

John D. Hardy, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Network interface apparatus and method for reducing conflicts through the use of times
    Patent number: 5378067
    Abstract: A network interface circuit is interconnected to a network terminal to enable the network terminal to communicate with other network terminals on a local terminal network. The network interface circuit includes an RS-485 transceiver including a driver and transmitter function. A status timer 42 controls a status line back to the network so as to indicate to the network terminal when the network is in use. A driver timer is present to automatically enable the driver function of the RS-485 circuit when a start bit is received from the network terminal, the driver timer being designed to insure that RS-485 transmitter function remains active until all the data has been transmitted.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: January 3, 1995
    Assignee: DataCard Corporation
    Inventors: Verne L. Severson, John D. Hardy, Jr.